EVALUATION OF THE MOTILITY OF THE SPERMATOZOA
- 15 February 1930
- journal article
- research article
- Published by American Medical Association (AMA)
- Vol. 94 (7) , 478-480
- https://doi.org/10.1001/jama.1930.02710330032010
Abstract
For years the motility of the male sex cells has been considered the chief or even sole criterion by which to judge the fertility of the male. It is too often forgotten, however, that motility is not even an inherent attribute of the spermatozoa, and Schücking1believes that in some animals with external fertilization the sperms, themselves not motile, may be brought to the ovum by external circumstances and then fertilize it. This is contradicted by others,2but the fact that such a difference of opinion can occur shows that motility alone must not be rated too highly. There are other characteristics of the sperm cells which are just as important as motility, as I3have brought out before in previous articles. In animals with internal fertilization the spermatozoa, of course, need motility to reach the ovum, but the degree of motility present under the microscope inKeywords
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